Title:
Failure detection systems and methods for overspeed protection speed sensors
Document Type and Number:
Japanese Patent JP6342138
Kind Code:
B2
Abstract:
A fault detection system (100) for an over-speed protection system of a rotating machine includes a first speed sensor (110), second speed sensor (120), and third speed sensor (130) sensing a speed of a shaft of the rotating machine. The system includes a first input configured to receive a first pulse train (115) from the first speed sensor (110), a second input configured to receive a second pulse train (125) from the second speed sensor (120), a third input configured to receive a third pulse train (135) from the third speed sensor (130), and a processor (140) configured to generate a shutdown signal for the rotating machine based on the first pulse train (115), the second pulse train (125), and the third pulse train (135).
Inventors:
Michael G. Wise
John Robert Booth
Fred Henry Bottner
John Robert Booth
Fred Henry Bottner
Application Number:
JP2013215169A
Publication Date:
June 13, 2018
Filing Date:
October 16, 2013
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
G01R31/34; F01D21/14; F01D21/16; F01D25/00
Domestic Patent References:
| JP4980404A | ||||
| JP6207836A | ||||
| JP2005315237A |
Foreign References:
| US20080213084 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
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